Subterranean secrets: World's creepiest underground marvels

Ever had a tube journey from hell? How about a tube journey into hell -- or out of it, depending on which way you're traveling. Stockholm's underground is a bastion of subterranean design, and Radhuset metro station provides the Dante's Inferno of commutes.

It's cavernous interior, deep rouge and magma-like, may not require Virgil to navigate, but there's definitely a satanic charm to the 1970s design.

It's one of many underground marvels to be found throughout the world. From a theme park in a Romanian mine to a cathedral 660 feet below Colombia, there's a host of incredible spots deep within terra firma waiting to be explored.

Click the gallery below and let CNN Style take you on a journey to five continents, by way of ancient cities and Cold War boltholes. We hope you're not scared of the dark.

1/15 – Radhuset metro station, Sweden

The underground can be a scary place at the best of times. The queues, the big squeeze, the stress. Radhuset subway station in Stockholm, Sweden makes the morning commute feel like a descent into hell, or an escape from it, depending on which way you're traveling. The sculptural finish is one of over 90 subway stations in the city to have been decorated by over 150 artists. (Picture via Creative Commons 2.0.) Credit: Tobias Lindman/Flickr